There’s an exciting auspicious energy to the dawn before Midoriya’s first day at UA High (bolstered by the show’s sick epic hero rock soundtrack), and All Might reassures him that in time he’ll be able to control One for All, even thought it may not happen overnight.
He gets more emotional support from his proud-as-punch mom (who is the cutest mom), from Iida, a former naysayer he won over in the exam, and “nice girl” Ochako, who is also glad to be in class with the “plain-looking” Midoriya.
But as is usually the case for Midoriya and shounen like him throughout anime history, what awaits him once he’s finally over the mountain…is another mountain. His homeroom teacher is Aizawa Shouta, a listless but no-nonsense hero who works in the shadows; pretty much the anti-All Might. He believes his students have no time for opening ceremonies or afterschool trips to McDonalds.
They’re here to be heroes, and that means finding their maximum as soon as possible so that they can determine what they can and can’t do. Midoriya is in the unenviable position of having just received his quirk, and so far only used it at either 0% or 100%. He has to get through eight physical tests (the same ones all Japanese students take, only use of quirks is permitted) and not end up last, lest he get expelled on the first day.
Aizawa’s perspective is no harsher or unfairer than reality, in which a villain or disaster can strike at any time, and won’t wait for you to master your quirk. You’ve gotta be ready yesterday for what could happen today. Fortunately, being pushed into a corner, Midoriya remembers all the supportive words of his allies, and manages to get through the tests by minimizing the damage done by One For All, localizing its power in his finger while throwing a ball.
With that throw, which leaves Midoriya down a finger but otherwise in fine shape, he proves to Aizawa that he does have potential; and that UA High is the perfect venue to cultivate and realize that potential. We also learned that Bakugo still things something underhanded happened to get Deku enrolled, while we were introduced to the powers of some of Midoriya’s many classmates. All in all, a serviceable, if somewhat sparse, introduction to his hero academia.